Scientific Rocketry 2

Added molten forms of Actually Additions crystals + KubeJS metals.
Added Treated Leather, used for backpacks.
Added Integrated Dynamics recipes.
Added Glowing Brass as a material used for Electron Tubes.
Added Smeltery recipe for Andesite Alloy.
Added Sheetmetal Die for Multiservo Press.
Made Frozen Pearls + Elevators attainable without Ender Pearls.
Added Crystallizer recipes for Tinkers' Construct Slime Crystals
Added PNC recipes for Crystallized/Empowered Oil + Redstone Acid
Added Thermal recipes for Redstone Acid + Plastic + Lubricant
Added recipes for Hooked.
Added recipe for TIAB.
Switched from EMI to JEI due to bugs with Multiblocked 2's preview in EMI.
Added Just Enough Resources and set up the world-gen.json file.